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From: eijkhout@s41.csrd.uiuc.edu (Victor Eijkhout)
Newsgroups: comp.text.tex
Subject: Re: ^^M delimited arguments in a macro?
Message-ID: <1990Nov1.163550.27537@csrd.uiuc.edu>
Date: 1 Nov 90 16:35:50 GMT
References: <320@ariel.its.unimelb.edu.au>
Sender: news@csrd.uiuc.edu (news)
Organization: UIUC Center for Supercomputing Research and Development
Lines: 22

duty@ariel.its.unimelb.edu.au (Duty Programmer) writes:

>\def\test #1 #2 #3\par{blah #1 blah #2 blah #3}

>\begingroup \obeylines
>\test first second and then this is the third argument

>As I understand it, \obeylines ``makes the ASCII <return> into an
>active character that uses the current meaning of \par, and plain TeX

Right, but that doesn't mean that there is actually a \par
at the end, there is still a <return>, and if that would
ever be investigated it would assume the meaning of \par,
but not if it just glossed over by a macro scanning for
arguments.

\catcode`\^^M=12
\def\PickToEol{\begingroup\catcode`\^^M=12 \xPickToEol}
\def\xPickToEol #1 #2 #3^^M{ blah blah blah \endgroup}
\catcode`\^^M=5

Victor.